| A | B |
| Vindictive | vengeful |
| Vivacious | animated; full of energy and life |
| Vociferous | loud; voicing one’s opinion in an obnoxious way |
| Voluble | fluent in speech, especially used for one who talks too much |
| Vomiturition | repeated but unsuccessful attempts to vomit; dry heaves |
| Voracious | eager to devour food; ravenous; insatiable in some other aspect |
| Vulnerable | unprotected from |
| Wanton | immoral; unchaste |
| Whim | an impulse; a sudden fancy |
| Wily | clever in a sneaky way; sly |
| Wrath | anger; rage |
| Wistful | yearning; wishful |
| Zany | comical in a crazy or off-the-wall way |
| Zeal | enthusiasm or feverish devotion |
| Zealous | the highest point; opposite of nadir |
| Zenith | the highest point; opposite of nadir |
| Zest | happy enjoyment; gusto |
| Zyzzyva | a tropical weevil of the genus Zyzzyva which is destructive to plants |